31 lines
988 B
Go
31 lines
988 B
Go
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package threadsapi
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import (
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"regexp"
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"strings"
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)
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// profileAuthorRE captures the @<username> segment of a Threads permalink.
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// Examples:
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//
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// https://www.threads.com/@some.user/post/CfXyZ123
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// https://www.threads.net/@some.user/p/CfXyZ123
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var profileAuthorRE = regexp.MustCompile(`(?i)threads\.(?:com|net)/@([a-zA-Z0-9._]+)`)
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// ProfileURLFromPermalink derives the author's profile root URL from a Threads
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// post permalink. Falls back to https://www.threads.com/@<username> when the
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// permalink does not contain an @<username> segment. Prefer threads.com over
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// threads.net because the .com host is the current canonical domain.
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func ProfileURLFromPermalink(permalink, username string) string {
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username = strings.TrimSpace(username)
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if permalink != "" {
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if match := profileAuthorRE.FindStringSubmatch(permalink); len(match) >= 2 {
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return "https://www.threads.com/@" + match[1]
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}
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}
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if username == "" {
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return ""
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}
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return "https://www.threads.com/@" + username
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}
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